Spool



Patente Dec. 23, i924.

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HUGO H. WERMINE, F CHICAGO, ILLINOIS, ASSIGNOR T0 BLDEN MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

E of Illinois, have invented certain new and useful Improvements in Spools, of which the following is a specificatmn. l

'Ihis invention relates to spools for winding wire and the like and has for its primary object to provideI an article for this purpose which is simple and durable in construction and may be economically produced.

The many other objects and advantages of my invention will be better understood by reference to the following specification when considered in connection with the accompanying drawing illustrating a selected embodiment thereof, in which Fig. 1 is an end elevation of a spool eml bodying thevprinciples of my invention.

Fig. 2 is a central longitudinal section on the line 2-2 of Fig. 1.

Fig. 3 is an elevation of one end portion of the central tube.

Fig. 4 is an enlarged view of a portion of one end of the, spool before the central tube is inserted, and

Fig. 5 is the same as Fig. 4 after the tube is inserted and secured in place.

Referring to the drawing, the spool comprises a body 10 substantially tubular -in form and provided at its ends with integral flanges or heads 11 and 12. A tube 13 eX- t'ends longitudinally through the body and is supported at its ends by suitable bearings.

One of these bearings in the present embodiment is provided by v a disk-like flange 14 formed integral with the body and having a central opening 1 5 to fit the tube 13. An inwardly projecting annular flange 16 preferably surrounds this opening to 'provide a longer bearing surface for the tube. The' bearing for the opposite end of the tube is provided by a disk or washer 17 which fits within the slightly enlarged outer end of the bore and abuts the shoulder 18. An annular lip 19 on the end of the body is spun or pressed over the beveled outer edge of this disk or washer during the assembly process to permanently -retain the same in position. This washer has a central or bearing opening 20 corresponding to the opening 15 at the opposite end of the spool.

t' In order to prevent rotation of the tube 13 relative to the body, I prefer to form the arcor..

application mea my as, 1924..' serial No. 728,291.

wall of the bearing openin 15 polygonal orr of form other than Yroun as is lillustrated rn Fig. 4. This same' method may be util1zed in the disk 'or washer 17 but in the present embodiment I have knurled the end @0 portion of the tube as at 21 where it passes through the disk. A

I p refer to form the body of the spooIof aluminum alloy, bakelite or other material which may be readily cast, moulded or otherwise formed in the desired shape and which combines lightness with durability and strength. 'Ihe tube 13 and v-washer 17 are preferably of steel. 'Ihe tube is inserted through the end bearings and the Yrend.

edges are pressed or spun over asat 22 and 23. 'Ihe ends of the tube are preferably Shghtly expanded during the assembly process. rIhis causes the tube to conform tothe shape of the bearing opening 15 asl illus- 75 trated in Fig. 5, and forces the ribs or protuberances provided\by the knurling at 21 into the wall of the opening 20. 'Ihe tube 1s thus' held; rigidly by the integral bearing at one end and the disk or washer' 17 is xed S0 on the other end of the tube.

I prefer to groove the ends of the body as at 24 and 25 and provide beads at the outer edges of the flanges 11 and 12 as at 26 and 27. 'Ihis strengthens the flanges mi Without increasing the weight of the spool. From the foregoing description it will be evident that my improved. spool construction combines lightness with strength and durability and may be economically pro- 9u duced.

The body or barrel of the spool is prefer- Vw ably of relatively large diameter whereas the 'tube therein is of relatively small diameter I and considerably spaced from the wall of the bore. 'Ihis is particularly advantageous as the hollow wall construction makes it possible to build a large spool which is light in weight and requires very little metal.

The substantially uniform bore throughout ,100

the finished spool is likewise advantageous.

I am aware that the form and arrangement of parts may be considerably changed without departing from the spirit of my invention, and I reserve the right to make all R05 such as fairly fall within the scope of the following claims.

I claim as my invention:

1. A spool comprisin a molded tubular body, a tube extending longitudinally tm 6 lfor the corresponding end of saidI tube'.

' means for one end of said tube formed int one end of said tube forme integral with said body, and a disk seated in the otpposite end of said body and forming the earing a molded tubular g longitudinally 2. A spool comprisin body, a tube exten p throgh the bore of said body, a bearing for one end of said tube formed integral with said bod a disk seated in the o posite end of said body and forming the gearing for the corresponding end`r of said tube, and (preventing relative rotation of the tube an body.

3. A spool comprisin a molded tubular body, a tube exten mg longitudinally through the bore of said body, a bearing for one end Off said tube formed integral with said body, and a disk seated in the o posite end of said 'body and forming the aring -or the corresponding end of said tube, the

endedge portlons of the tube being turned outwardly to interlock with the corresponding outer faces of said bearings. t

4. A spool comprising a molded tubular body, a tube extendmg longitudinally through the bore of said body, a bearing for one end of said tube formed integral vwith said body, and a disk seated in the opposite end'of said body and forming the bearing for the corresponding en'd of said tube, the end edges of the tube being spun over upon the corresponding outer faces of said bearing's'to preventgendwise movement of the tube within the body.

5. A spool comprising a molded tubular body, a tube extending longitudinally .hrough the bore of said body, a bearing for egral with said body, and a disk seated in the opposite end of said body and forming the bearing for the correspondingend of said tube, the walls of the openin in said integral bear-y ing being initially o dillerentconformation than the peri hery yof the portion of the tube passing t erethrough and said portion l' being sub'ected to internal pressure during the assem lyoperation to cause the tube to t said walls.V

6. A spool comprising a molded tubular body, a tube extending longitudinally through the bore of said body, bearings for said tube at substantially opposite ends of said bore, one of said bearings comprising a disk 'seated in the body and rovided with a central opening to receive an fit said tube, and means for -preventing relative rotation of said tube and disk.

7. A spool comprising a molded tubular body, a tube extending longitudinally through the bore of said body, bearings' for said tube at the opposite ends of'said bore, one of said-bearings comprising a disk-seated in thebore and having a central opening to receive and fit said tube, the periphery of and dis the. Egrtion of said tube within said open- 1n beng expanded during `theassembly perat1on to revent relative rotation of sai tube ing knurledy and the knurled portion 8. A spool. comlrising a. molded tubular body havin one end portion of the bore enlar ed an an annular li on the end surroun ing said bore, a dis litt' the enlarged .ortion of the bore and eing retained t ereinagainst the shoulder formed by such enlar ementby said lip, said disk ,y

enlarged and an ann ar lip on the end surrounding said bore, a disk fitting the enlarged ortion of the boreand being rewtained t erein against the shoulder formed by such enlargement by said lip, said disk being provided with a central opening, a

`tube extending through thebore of said body and havingA oneI end portion tting Within said opening, and means for venting relative rotation of said tube and disk. '1

10. A `spool comprising a one-piece molded barrel having external projecting integral end flanges thereon, Aco-axiall aperturediclosures for the ends of the barrel and a tube disposed co-axially within the barrel and fitting the apertures of the closures and tyingtogether said closures, one of said" closures comprising a washer yseparate from said barrel and flanges and secured co-axially rto the barrel. l

11. A spool comprising a one-piece molded barrel having external projecting integral end flanges thereon, co-axially apertured closures for the ends of the barrel, and a tube disposed co-axially within the barrel and fitting the apertures'of the closures andt tying together said closures, one of said closures comprising a washer Separate from said barrel and said flanges and secured coaxially to :the barrel, one end of the barrel being externallyl recessed to it andorm a seat for said last named closure.

12. A spool comprising a hollow metal barrel of relatively large diameter, centrally apertured closures for the ends of said barrel, one of said closures being initially separate from the barrel, and a tube of smaller diameter than the bore of the barrel connectin tures t erein.

13. A spool comprising a hollow metal barrel of relatively large diameter, centrally apertured closures for the ends of said barrel, one of said closures being initially separate from the barrel, and a tube of smaller diameter than the bore of the .barrel Pre' 4los

said closures and fitting the aperconnecting said closures and interlocked barrel and fitting the apertures of the with'said apertures. I closures and t ing together said closures,

14. A spool comprising a one-piece one of said c osures comprising a sheet l0 molded barrel having external projecting metal Washer separate from said barrel and 5 integral end anges thereon, co-axially said flanges and secured at its periphery to apertured closures for the ends of the barrel, the adjacent end of the barrel. and a tube disposed co-axially within the HUGO H. WERMINE. 

